ListView with RatingBar example

Android ListView with RatingBar item

ListView의 리스트 한 행을 표현할 때 RatingBar와 TextView를 포함한 레이아웃 파일을 사용하는 예

rating_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ListView
        android:id="@android:id/list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>

rating_row.xml (ListView의 한 행을 표현함)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="center_vertical"
    android:orientation="horizontal" >

    <RatingBar
        android:id="@+id/ratingBar1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:numStars="3" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="center_vertical"
        android:text="TextView"
        android:textSize="16pt" />

</LinearLayout>

RatingActivity.java

package com.example.androidtest;

import android.app.*;
import android.content.*;
import android.os.*;
import android.util.Log;
import android.view.*;
import android.widget.*;

public class RatingActivity extends ListActivity {

     String[] name = {"강호동", "이수근", "김종민", "은지원", "엄태웅", "유재석", "이경규", "박근혜", "박지원",
		"김연아", "박지성", "박찬호", "최경주", "이동국", "김태희", "엄기영", "노홍철", "박영일"};
	float[] ratings = new float[name.length];// Rating을 변경할 때마다 그 값을 기록할 배열
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.rating_main);
		RatingAdapter adapter = new RatingAdapter(this, R.layout.rating_row, name);
		setListAdapter(adapter);
	}
	
	class RatingAdapter extends ArrayAdapter<String> {
		Context ctx;
		public RatingAdapter(Context context, int textViewResourceId, String[] objects) {
			super(context, textViewResourceId, objects);
			ctx = context;
		}
		
		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			View row = convertView;
			if(row==null) { // Object reuse
				LayoutInflater inflater = getLayoutInflater();
				row = inflater.inflate(R.layout.rating_row, parent, false);
			}
			TextView tv = (TextView)row.findViewById(R.id.textView1);
			tv.setText(name[position]);
			RatingBar rb = (RatingBar) row.findViewById(R.id.ratingBar1);
			rb.setRating(ratings[position]);
			rb.setTag(position);
			rb.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
				public void onRatingChanged(RatingBar ratingBar, float rating,
						boolean fromUser) {
					if(!fromUser) return;// 사용자가 터치하여 변경할 때만 유효하게 처리
					int index = (Integer)(ratingBar.getTag());
					ratings[index] = rating;
				}
			});
			return row;
		}
	}
}